Fix warning

[aloctavodia]

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📚 Documentation preview 📚: https://arviz-plots--99.org.readthedocs.build/en/99/

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 0% with 1 line in your changes missing coverage. Please review.

Project coverage is 85.81%. Comparing base (3cc46aa) to head (f01e678).

Files with missing lines	Patch %	Lines
src/arviz_plots/backend/plotly/__init__.py	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #99      +/-   ##
==========================================
+ Coverage   85.65%   85.81%   +0.15%     
==========================================
  Files          22       22              
  Lines        2545     2545              
==========================================
+ Hits         2180     2184       +4     
+ Misses        365      361       -4     

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